23123403203401 has 2 divisors, whose sum is σ = 23123403203402. Its totient is φ = 23123403203400.

The previous prime is 23123403203399. The next prime is 23123403203413. The reversal of 23123403203401 is 10430230432132.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22033260481600 + 1090142721801 = 4693960^2 + 1044099^2 .

It is a cyclic number.

It is not a de Polignac number, because 23123403203401 - 2¹ = 23123403203399 is a prime.

Together with 23123403203399, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 23123403203401.

It is not a weakly prime, because it can be changed into another prime (23123403203491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11561701601700 + 11561701601701.

It is an arithmetic number, because the mean of its divisors is an integer number (11561701601701).

Almost surely, 2^{23123403203401} is an apocalyptic number.

It is an amenable number.

23123403203401 is a deficient number, since it is larger than the sum of its proper divisors (1).

23123403203401 is an equidigital number, since it uses as much as digits as its factorization.

23123403203401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 23123403203401 its reverse (10430230432132), we get a palindrome (33553633635533).

The spelling of 23123403203401 in words is "twenty-three trillion, one hundred twenty-three billion, four hundred three million, two hundred three thousand, four hundred one".